st_Local: Applies the default local summer time alterations as defined by the C function localtime. This uses country setting of the underlying operating system to detect when summer daylight saving should be applied. We can not guarantee the operation of localtime, so we generally recommend that this option is not used - except were you do not have doubts about the location the program is being run from.

Parameters

Region

is the location or country for which the existence of summer time is required, see summerTimeRegion for codes. For ease, there are two additional options that can be specified: